TÜREYEN, Ali, Ertuğrul KAYAÇETİN, Seniha NALDÖKEN, Mustafa BALCI, and Aysel ÜLKER. “The Frequency of Sacroileitis and Ankylosing Spondylitis in Inflammatory Bowel Disease and HLA-B27 Association”. Turkish Journal of Gastroenterology 13, no. 3 (January 3, 2002): 125–129. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/1203.